That's where we disagree. If you go for a less-specific family of flags, say tricolors or various crosses, then once the color's been bled out and the image faded the kind of people who would complain were it specific will see specificity where none is intended. I base this on experience; just ask a room full of (Slavic) Macedonians, Albanians, and Greeks what ethnicity Alexander the Great was and watch the bloodshed. For some reason it's the unimportant harmless details that people get hung up on.
Hence if we use a class of flag--let's say, for example, the vertical tricolor--then nationalistic Italians and French who have nothing better to do but complain will complain. If it's a horizontal tricolor, then Russians and Germans will see some sort of coded message in it and complain. Offset cross, Scandinavians. Solid color, Libya. The list goes on and on and on.
This is why I argue for using an original design which, while flaglike, is not used IRL at all if possible and, preferably, does not even resemble anything IRL except unless you squint and stand on your head.
Something like this? I'm not sure, although I need to even it up.
